set about
verb.
begin to deal with
approach a task|go about a difficult problem|approach a new project
Synonym: approach, go about
verb.
enter upon an activity or enterprise
Synonym: attempt, undertake
verb.
take the first step or steps in carrying out an action
We began working at dawn|Who will start?|Get working as soon as the sun rises!|The first tourists began to arrive in Cambodia|He began early in the day|Let's get down to work now